A stunning example of an iridescent multi-ammonite fossil of the species Psiloceras planorbis from North Somerset, UK.
The piece of limestone matrix measures 180 mm (7.1 inches) wide and contains three and a half fossil ammonites. The ammonites are well preserved and have been prepared out of the rock to reveal the whole shells. The shells display some subtle iridescent colours that change depending on the angle that the fossil is viewed at and a nice sheen. The fossil weighs 540 grams and has a cut flat base to allow it to stand freely for display.
Around 200 million years old (Hettangian, Early Jurassic), this fossil would make a wonderful addition to any collection.